Contra Costa County, CA

686 public highway bridges

Contra Costa County Bridge Snapshot

Contra Costa County, California contains 686 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.7% are rated “Good,” 26.1% “Fair,” 5.5% “Poor,” and 5.5% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

686
Total Bridges
29.7%
Good
5.5%
Poor
5.5%
Structurally Deficient

Condition Distribution

Good
29.7% (204)
Fair
26.1% (179)
Poor
5.5% (38)
SD
5.5% (38)

All Bridges (686)

SHELL AVE

Good

Over: OIL REFINERY PIPE UC

0.2 MI N PACHECO BLVD, Contra Costa, CA

Built 1940 Load: 16.2 t ADT: 4,386

DEER PARK DR

Good

Over: PINE CREEK

0.1 MI E OAK GROVE RD, Contra Costa, CA

Built 1967 Load: 16.8 t ADT: 1,000

GOLF CLUB ROAD

Good

Over: CONTRA COSTA CANAL

AT PASO NOGAL, Contra Costa, CA

Built 1940 Load: 16.8 t ADT: 5,000

WATERFRONT RD

Good

Over: PEYTON SLOUGH

0.4 MI E I-680, Contra Costa, CA

Built 1955 Load: 17.2 t ADT: 4,185

BEAR CREEK ROAD

Good

Over: BEAR CREEK

0.4 MI N HAPPY VALLEY RD, Contra Costa, CA

Built 1965 Load: 18.1 t ADT: 1,040

BUCHANAN RD

Good

Over: CONTRA COSTA CANAL

0.4 MI W SOMERSVILLE RD, Contra Costa, CA

Built 1938 Load: 19.8 t ADT: 5,500

BANCROFT RD

Good

Over: WALNUT CREEK

0.1 MI N DAVID ST, Contra Costa, CA

Built 1958 Load: 20.1 t ADT: 19,300

ORINDA WAY

Good

Over: SAN PABLO CREEK

AT CAMINO PABLO, Contra Costa, CA

Built 1920 Load: 20.1 t ADT: 6,000

JAMES DONLON BLVD

Good

Over: CONTRA COSTA CANAL

1.5 MI E SOMERVILLE RD, Contra Costa, CA

Built 1950 Load: 20.4 t ADT: 1,873

VAN NESS STREET

Good

Over: WILDCAT CREEK

0.1 MI S SAN PABLO AVE, Contra Costa, CA

Built 1960 Load: 20.4 t ADT: 13,320

THIRD ST

Good

Over: WILDCAT CREEK

0.1 MI N MARKET AVE, Contra Costa, CA

Built 1955 Load: 20.7 t ADT: 3,119

SAN PABLO AVE

Good

Over: GARRITY CREEK

0.03 MI N TARA HILLS DR, Contra Costa, CA

Built 1924 Load: 21.4 t ADT: 15,260

THIRD ST

Good

Over: SAN PABLO CREEK

AT PARR BLVD, Contra Costa, CA

Built 1955 Load: 22.0 t ADT: 2,222

WALNUT AVE

Good

Over: CONTRA COSTA CANAL

0.01 MI E THE ALAMEDA, Contra Costa, CA

Built 1955 Load: 22.4 t ADT: 300

Canal Trail

Good

Over: Galinda Creek

Contra Costa Canal, Contra Costa, CA

Built 1939 Load: 22.7 t ADT: 2

CAVALLO RD

Good

Over: E ANTIOCH CR

0.1 MI S WILBUR AVE, Contra Costa, CA

Built 1961 Load: 22.7 t ADT: 4,100

EL NIDO RANCH RD

Good

Over: LAFAYETTE AQUEDUCT

0.1 MI N MT DIABLO, Contra Costa, CA

Built 1969 Load: 23.0 t ADT: 2,843

LIVORNA RD

Good

Over: SAN RAMON CREEK

AT RTE 680, Contra Costa, CA

Built 1971 Load: 23.0 t ADT: 7,924

GREGORY LN

Good

Over: CONTRA COSTA CANAL

0.1 MI E PLEASANT HILL RD, Contra Costa, CA

Built 1939 Load: 23.3 t ADT: 9,000

FIRST ST

Good

Over: RODEO CREEK

EAST OF SOUTH 'H' ST, Contra Costa, CA

Built 1965 Load: 23.3 t ADT: 440

SAN PABLO AVE

Good

Over: PINOLE CREEK

0.1 MI E TENNENT AVE, Contra Costa, CA

Built 1929 Load: 23.7 t ADT: 11,000

SAN PABLO AVE

Good

Over: MCCARTHY CREEK

0.2 MI NE TARA HILLS DR, Contra Costa, CA

Built 1969 Load: 24.3 t ADT: 15,109

YGNACIO VALLEY RD

Good

Over: PINE CREEK

0.2 MI E OAK GROVE RD, Contra Costa, CA

Built 1954 Load: 24.3 t ADT: 39,300

BYRON HWY

Good

Over: BRUSHY CREEK

2.9 MI N ALAMEDA CO LINE, Contra Costa, CA

Built 1953 Load: 24.3 t ADT: 12,023

WILBUR AVE

Good

Over: E ANTIOCH CREEK

0.05 MI W OF CAVALLO RD, Contra Costa, CA

Built 1959 Load: 24.3 t ADT: 6,603

COURT LANE

Good

Over: GALINDO CREEK

0.1 MI S COWELL RD, Contra Costa, CA

Built 1960 Load: 24.3 t ADT: 300

WHITMAN RD

Good

Over: SDM CHANNEL

0.3 MI NE OAK GROVE RD, Contra Costa, CA

Built 1965 Load: 24.3 t ADT: 1,500

ALCOSTA BLVD

Good

Over: SOUTH SAN RAMON CREEK

0.9 MI EAST OF I-680, Contra Costa, CA

Built 1962 Load: 24.3 t ADT: 26,700

TREAT BLVD

Good

Over: PINE CREEK

AT SAN MIGUEL RD, Contra Costa, CA

Built 1965 Load: 24.3 t ADT: 18,245

HARBOR ST

Good

Over: KIRKER CREEK

AT STONEMAN AVE, Contra Costa, CA

Built 1968 Load: 24.3 t ADT: 2,000

WEST EL PINTADO RD

Good

Over: GREEN VALLEY CREEK

300 FT N DIABLO RD, Contra Costa, CA

Built 1970 Load: 24.3 t ADT: 3,322

CONCORD AVENUE

Good

Over: MARSH CREEK

1.0 MI W WALNUT AVE, Contra Costa, CA

Built 1959 Load: 24.3 t ADT: 3,979

FAIRVIEW AVENUE

Good

Over: SAND CREEK

AT SAND CREEK ROAD, Contra Costa, CA

Built 1966 Load: 24.3 t ADT: 8,500

MORNINGHOME RD

Good

Over: SYCAMORE CREEK

AT SYCAMORE VALLEY RD, Contra Costa, CA

Built 1970 Load: 24.3 t ADT: 400

VALLEY VIEW RD

Good

Over: SAN PABLO CREEK

0.2 MI E SAN PABLO DAM RD, Contra Costa, CA

Built 1966 Load: 24.3 t ADT: 8,760

MAY ROAD

Good

Over: SAN PABLO CREEK

AT SAN PABLO DAM RD, Contra Costa, CA

Built 1963 Load: 24.3 t ADT: 8,468

OLD RANCH RD

Good

Over: ALAMO CREEK

0.2 MI W DOUGHERTY RD, Contra Costa, CA

Built 1967 Load: 24.3 t ADT: 1,000

PINE VALLEY RD

Good

Over: SOUTH SAN RAMON CREEK

0.5 MI W ALCOSTA BLVD, Contra Costa, CA

Built 1967 Load: 24.3 t ADT: 9,000

MONTEVIDEO DR

Good

Over: SOUTH SAN RAMON CREEK

0.5 MI W ALCOSTA BLVD, Contra Costa, CA

Built 1967 Load: 24.3 t ADT: 12,000

OLD ORCHARD RD

Good

Over: SYCAMORE CREEK

AT SYCAMORE VALLEY RD, Contra Costa, CA

Built 1970 Load: 24.3 t ADT: 1,200

DUNCAN STREET

Good

Over: WALNUT CREEK

AT N. BROADWAY STREET, Contra Costa, CA

Built 1971 Load: 24.3 t ADT: 5,000

MT. DIABLO BLVD

Good

Over: LAS TRAMPAS CREEK

100 FT E. OF N. BROADWAY, Contra Costa, CA

Built 1971 Load: 24.3 t ADT: 14,294

MT. DIABLO BLVD

Good

Over: SAN RAMON CREEK

50 FT W. OF N. BROADWAY, Contra Costa, CA

Built 1971 Load: 24.3 t ADT: 14,294

CONCORD BLVD

Good

Over: MOUNT DIABLO CREEK

0.3 MI E OF BAILEY RD, Contra Costa, CA

Built 1957 Load: 25.6 t ADT: 9,381

INTERSTATE 680

Good

Over: LA GONDA WAY

04-CC-680-R9.25-DNVL, Contra Costa, CA

Built 1964 Load: 25.9 t ADT: 194,300

ST MARY'S ROAD

Good

Over: LAS TRAMPAS CREEK

1.1 MI N RHEEM BLVD, Contra Costa, CA

Built 1975 Load: 26.2 t ADT: 10,570

VINEYARDS PKWY

Good

Over: MARSH CREEK

0.1 MI W/O MARSH CREEK RD, Contra Costa, CA

Built 2007 Load: 26.2 t ADT: 302

ORINDA BALLFLD LN

Good

Over: QUERCUS CREEK

.1 MI E OF WILDER RD, Contra Costa, CA

Built 2011 Load: 26.2 t ADT: 300

VINEYARDS PKWY

Good

Over: MARSH CREEK

0.1 MI W/O MARSH CREEK RD, Contra Costa, CA

Built 2007 Load: 26.6 t ADT: 376

SR 160

Good

Over: SAN JOAQUIN RIVR ANTIOCH

04-CC-160-0.82, Contra Costa, CA

Built 1978 Load: 27.5 t ADT: 18,900

Read our methodology — how this data is sourced, computed, and verified.

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial